A new perspective on vegetable oil epoxidation modeling: reaction and mass transfer in a liquid-liquid-solid system

Tapio Salmi, Vincenzo Russo, Adriana Freites Aguilera, Pasi Tolvanen, Johan Wärnå, Martino Di Serio, Riccardo Tesser, Tommaso Cogliano, Sébastien Leveneur, Kari Eränen

Research output: Other contributionpeer-review

Abstract

A rigorous mathematical model was developed for a complex liquid-liquid-solid system in a batch reactor. The approach is general but particularly well applicable for the indirect epoxidation of vegetable oils according to the concept of N. Prileschajew. The model considers intra- and interfacial mass transfer effects coupled to the reaction kinetics. The liquid phases were described with chemical approach (aqueous phase) and a reaction-diffusion approach (oil phase).The oil droplets were treated as rigid spheres, in which the overall reaction rate is influenced by chemical reactions and molecular diffusion phenomena. The model was tested with a generic example, where two reactions proceeded simultaneously in the aqueous and oil phases.The example (i.e. fatty acid epoxidation à la Prileschajew) illustrated the power of the real multiphase model in epoxidation processes. The proposed modelling concept can be used for optimization purposes for many applications, which comprise a complex water-oil-solid catalyst system.
Original languageEnglish
DOIs
Publication statusSubmitted - 2021
MoE publication typeO2 Other

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